What is Chaga?
Chaga (Inonotus obliquus) doesn’t look like an ordinary mushroom. Instead of a cap and stem, it forms a hard, dark growth, almost like a piece of charcoal, on the trunks of birch trees, where it develops slowly over many years. The mushroom occurs naturally in the forests of Russia, Poland, Scandinavia, Canada, Japan and parts of China. The most common traditional use among local populations is a tea brewed from the coarse chunks, a custom with deep roots in Siberia, Finland and the Baltic states, where it has been practised for centuries.
The main compounds in chaga include beta-glucans, betulinic acid and melanin, along with minerals such as potassium, sodium and manganese. Betulinic acid is particularly interesting: it comes from the birch bark the mushroom grows on, which explains why wild-harvested chaga from birch trees is considered especially valuable compared to cultivated alternatives.
Wild-harvested from birch trees
Unlike most of our mushroom extracts, this chaga is not cultivated. It is one of the few species in our range that we don’t grow but harvest from natural birch forests in northeastern China. Wild harvesting preserves the mushroom’s natural growing conditions and lets it develop its full compound profile, including the birch-derived betulinic acid, over a longer growth period. The organic harvest complies with the applicable EU regulations.
After harvesting, the chaga fruiting bodies are ground, checked for metal particles and processed through hot-water extraction, centrifugation and spray-drying into a concentrated extract with a polysaccharide content standardised to 30%. As with all our mushroom extracts, only pure fruiting-body material is used. No mycelium, no grain fillers.
Every batch undergoes strict quality control, including testing by the independent, state-recognised AGROLAB laboratory, and residue sampling for full traceability from forest to finished product.
Chaga in traditional use
Chaga has been used for centuries across multiple continents and cultures. In traditional Chinese practice, the mushroom is regarded as a valued general tonic. In Siberia and the Baltic states, communities have brewed chaga tea as part of their daily routines for generations. In Scandinavia and Finland, the mushroom has long held a fixed place in local herbal tradition.
The main compounds in chaga, including beta-glucans, betulinic acid and melanin, are the subject of ongoing scientific research into the composition of this unusual mushroom.
In tradition, chaga is often combined with Reishi or with Lion’s Mane, combinations that have long been part of traditional use.
Why order chaga extract from Kraatje?
At Kraatje.eu, we source our chaga extract from trusted, quality-controlled European suppliers. This extract is certified organic and is inspected in Germany by the European inspection body for organic production (DE-ÖKO-003). Every batch is independently tested, every product is fully traceable, and we deliver quickly across the UK and EU.
Explore our full range of organic functional mushroom extracts: Lion’s Mane extract, Cordyceps extract and Reishi extract. Looking for a combination? Chaga and Reishi is one of the most popular traditional mushroom pairings.
